Smoke-consumer.



A. E. WILSON.

SMOKE CONSUMER.

APPLICATION FILED OUT. 30, 1911. v

Patented Apr. 29, 1913.

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A. E. WILSON.

SMOKE CONSUMER.

APPLICATION FILED 001130, 1911 lVlT/VESSES:

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Patented Apr. 29, 1913 2 SHEETS-SHEET 2.

ALMOND E. WILSON, 0F INDIANAPOLIS, INDIANA.

SMOKE-CONSUMER.

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Specification of Letters Patent.

Patented Aer. 2t Tie-d3.

Application filed October 30, 1911. Serial No. 657,534.

To all whom it may concern:

Be it known that I, ALnoro E. VViLsoN, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented a new and useful Smoke-Consumer, of which the following is a specification, reference being had to the accompanying drawings and to the letters and figures 'of reference marked thereon.

This invention relates generally to the construction and equipment of steam boiler furnaces, the invention having reference more particularly to such as is adapted to eliminate the smoke evil and also to effect economy in the use of fuel.

The object of the invention primarily is to provide an improved smoke consumer that will be of such-construction that it may be simply and cheaply produced, not liable to derangement in operation and which will be durable and economical in use; a specific object being to provide a smoke consumer of such construction that will permit of the introductioninto the furnace of the desired gaseous fluid requisite for perfect combustion, without admitting atmospheric air in natural or cold condition.

A still further object is to provide improved smoke consuming apparatus where by-the desired results may be attained with the minimum velocity of draft'possible, in order to prevent the heat from being drawn or forced up the chimney and wasted.

lVith the above mentioned and minor objects in view, the invention consists in a smoke consumer comprising a plurality of jet pipes connected to a header and arranged in a furnace at the front wall, and extending downwardly toward the bridge wall, the pipes being of considerable length to enable the jets of steam issuing therefrom to produce partial vacuum at the front Wall and immediately above the fire, to receive the ifnconsumed smoke from fresh coal so as to prevent its escape and insure that it shall be consumed and aid in the generation of heat, the header being connected by means of a supply pipe with the steam space of a boiler.

The invention consists also in the parts and combinations and arrangements of parts as hereinafter particularly described and pointed out in the appended claims.

BElerfllflg' to the drawings, Figure 1 is a u l I n I n sideeievenen or a steam boner and Entrance,

; threegit the aperture 1% partially broken away, to which the invention is applied; Fig. 2, a horizontal section of the furnace on the line A A in Fig. l; lfig. 3, a fragmentary vertical. section on the hue B B in Fig. 2; Fig. 4, a fragmentary elevation of the boiler front; Fig. 5, a perspective view of one of the pars of the apparatus; Fig. 6, a front elevation of a common form of pressure gage preferably employed in connection with the apparatus; and Fig. 7 a horizontal section on the plane of the line C in Fig. 3.

Similar reference characters in the diiferent figures of the drawings indicate like parts or elements herein referred to and described.

The furnace and the boiler may be variously constructed as will be understood, and as illustrating the invention a common type is shown comprising two side walls 1 and 2, a front wall 3, a rear wall 4, a bridge wall 5, grates 6 extending from the front wall to the bridge wall and from one to the opposite one of the side walls, a boiler 7 of the type that has draft tubes 8 therein, the boiler being-provided with a smoke box 9 to which a chimney 10 provided. with a damper 11 is connected, the boiler and furnace having an iron front '12, the boiler having a steam dome. 13, and the furnace doors 1% and 15 and ash pit doors 16 are hung on the front 12.

In practically carrying'out the objects of the invention an aperture 17 is cut'or otherwise formed in the metallic front 12 and a ball-socket 18 is formed around the aperture. An aperture 19 is formed in the front wall 3 so as to be a continuation of the aperture l7 and it is larger vertically at its inner end than at its outer end. An adjusting head 20 is provided which has ball joint face 21 at one side adapted to be seated in the ball-socket l8 and form a substantially air-tight joint therewith for excluding at mospheric air from the aperture 19, the head having-two ears 22 and 23 thereon. provided with adjusting screws 24: and 25 respectively, the ears having screw-threaded holes 26 and 27 therein respectively to receive the screws which normally extend into contact with the outer face of the front 12 adjacently to opposite sides of the ball-socket 18, The head is provided with a set-screw 28 which see cures one end of a tubular holder 29 in the adjusting heed, the holder extending and having a ago srsr AVAELABLE sort swag-ed inner end 30 in which the opening is less in diameter than in the remaining portion of the holder. The holder normally extends downwardly in the aperture 19 from the outer end toward the inner end thereof and the gravity pressure tends to hold the head 20 to its seat, the angularity of the holder being adjusted by means of the screws 24 and 25 as is apparent. A Steam-conducting pipe 31 is placed in the holder 29 and extends therethrough, being somewhat smaller in diameter than the holder so as to fit closely in the contracted end 30.

5; A header is provided which preferably comprises a pipe'T 32 secured to the inner end of the pipe 31, pipe nipples 33 and 34 v secured to opposite sides of the T so as-to extend horizontally near the inner side of the front wall 3, two Ts 35 and 36 secured to the two nipples respectively and two pipes 37 and 38. secured to the farther sides of the two-Ts respectively; also two pipe Us 39 and 40 secured to the farther ends of the pipes 37 and 38 respectively; also two jet pipes 41 and 42 secured to the two Ts 35 and 36 respectively, and two other jet pipes 1 43 and 44 secured to the two US 39 and 40 respectively. The jet pipes preferably extend in a plane corresponding to the plane 'of inclination of the ipe 31 but in some cases may be varied if desired by turning the nipples 33 and 34 more or less in the'T 32. The header in the present case is provided, as will be seen, with four jet pipes which is a suitable number in some cases but in other cases a larger or smaller number of jet pipes may be advantageously employed.

.Each jet pipe has a reduced end portion 45 adapted to constitute a jet nozzle. Suitable fire proof packing 46 such as asbestos wool is placed in the holder 29 around the pipe 31 a so as to'permit the pipe to-yield slightly in lateral direction in the holder and revent atmospheric air from passing t rough. Witha suitable number of jet pipes on the header the pipes are placed approximately.

equi-distant apart and so as to have the two outermost jet tubes in proximity to the side 0 walls of the furnace, and the adjustment is such that the steam jets shall be delivered from the nozzles at considerable distance from the front wall of the furnace and above the grates, and shall be projected toward the bridge wall somewhat below the top of the wall.

A supply pipe 47 is connected with the dome 13. so as to obtain the driest steam possible and it extends to and is connected with 69 the outer end of the pipe 31 so as to veonst-itute a continuous conduit from the boiler to the jet pipes without admitting atmospheric air thereto, the pipe 47 having suitable pipe fittings connected therewith as will be under- 85 stood, and it has a suitable regulating valve 48 conveniently connected therewith for regulating the passage of the steam to the jet pipes, particularly in order to prevent the steam from escaping from the jet nozzles at undesirably high pressure or velocity, and in order" to ascertain the pressure of the steam passing to the header a pipe 49 is connected with the pipe 47 between the regulating valve and the header and has -a pressure gage 50 connected therewith, so that the in- '75 tensity of the jets may-be intelligently governed. It being desirable to use very hot and dry steam, it may be found desirable in some cases to protect the supply pipe '47 y from the atmosphere so as to prevent radiation of heat from the steam,-and it will be I apparent that the steam in the header and relatively long jet pipes becomes superheated before escaping expansively into the furnace. v

In some cases, especially when very high. steam pressure is carried in the boiler and it is possible to conduct the steam at high 1 pressure and in dry condition to the header, fairly good results may be obtained without superheating the steam. in the furnace and in such case in order toprotect the header and the jet pipes from the heat of the furnace they are covered with suitable fireproof material such as asbestos formed in sections v and placed thereon, there being acover section 51 placed on the T 32, sections 52 and 53 placed on the nipples 33 and 34 respectively, sections 54 and 55 covering the Ts 35 and 36 respectively, and other sections 56 and 57 covering the pipes 37 and 38 respectively, sections 58 and 59 covering the jet pipes 4l a nd 42 respectively, elbow sections 60 and 61 covering the Us 39 and 4O respectively and other sections 62 and 63 covering the jet pipes 43 and 44 res eetively. The sections.58, 59, 62, 63 eachave a tapering end portion 64 corresponding somewhat to the shape of the nozzle 45, externally When equipping the furnace wit the a paratus the adjustment of the head 20 is made so that the jet pipes shall project at an approximately correct angle, but the most advantageous position of the jet-pipes is obtained as a result of observation of the effect 1-15 of the steam jets in the furnace, the adjusting screws 24 and 25 being manipulated until the position of the jet pipes is,obtained that will give the best results desired It will be understood that while the weight of the header and jet tubes tends to move the adjusting screw 25 away from the front 12 this tendency is conveniently resisted by the weight of the steam pipe 47 servin' pracey tically as a counter-balanc'e,andater the 125 proper aljustments have been made-an ow; f usually required to make further admBte ments, so that the head 20 may then be pernanently secured against movement n ts socket, m any suitable n am eiuy;{Ejagh pipe should be proportioned in length to the furnace to which the appliance is applied, so that the delivery end of the pipe shall be at a point approximately one-third of the distance from the front wall to the bridge wall It will be seen from the foregoing that the relatively long jet pipes delivering steam at considerable distance from the front of the furnace, which in practice has been found to be approximately one-third of the length of the furnace, leaves space above the grates at the front wall so to in effect constitute a vacuum or lazy chamber to temporarily retain the smoky gases from a fresh supply of fuel on the fire, usually thrown off from bituminous coal.

In practical use, upon applying a fresh supply of fuel to the fire box steam is freely admit-ted to the header and the jet pipes, and the damper is opened. Upon closing the furnace doors the supply of steam is gradually diminished and the damper is partially closed to any degree desired so as to retain all the heat units possible in the furnace and boiler tubes after the smoke has been consumed in the furnace. The steam escaping from the jet pipes is converted into steam gas or hydrogen gas which mixes with [he fuel gases and the hot air rising through the grates and the fire, resulting in the formation of a highly combustible gaseous mixture, and although the steam jets are gentle in their action so to not force the unconsumedcsmoke over the bridge wall and out of the chimney, whirling currents are produced above the coal fire so that the smoke at relatively low ten'iperature is gradually taken up and mixed with the hotter and highly combustible gases and is thcreinc msumed. The jet pipes as arranged serve to produce substantially a sheet of gaseous vapor extending entirely across the furnace laterally and from'the jet nozzles downwardly to the bridge Wall, so as to prevent gentle natural draft from drawing the smoke immediately out over the bridgewvall, but retains the smoke below the jet pipes to become more highly heated by the fire and gradually taken up and consumed with the highly combustible gaseous mixture from the hotterforward portion of the fur nace, the gases of combustion in a high state of incandescence passing in a long flame over the bridge wall and on through the boiler tubes, with the result that the smoke is effectually consumed with a relatively low rate of consumption of fuel and the minimum expenditure of steam from the jets.

Having thus described the invention,what is claimed as new is- 1. A smoke consumer appliance comprising a suppdrting head, a set screw inserted in the head, a tubular holder inserted in the head and engaged by the set; screw, a steam 'steam boiler mounted in the pipe extending loosely through the head, packing tightly inserted in the holder and about the exterior of the steam header connected to the steam pipc, jet pipes connected to the header, and a plurality of adjusting screws mounted in the sun )ortin head and ada )ted to ad'ust the l v (3 i angle or elevation of the jet pipes.

4i smoke consumer appliance including an adjusting-head, a tnlnilar holder secured at one end to the head, the opposite end of the holder being contracted in dian'ieter, a steam-pipe extending loosely through the holder and having contact with and filling the contracted end thereof. yielding packing inserted tightly between the steam-pipe and the holder, a. hollow header connected to the steam-pipe adj acently to the contracted end of the holder, and a plurality of jet-pipes connected to the header.

3. In a smoke consumer, the combination with a furnace having a front wall provided with an aperture and also a bridge wall distant from the front wall, grates between the front wall and the bridge wall, and a steam boiler mounted in the furnace; of a furnace-v front at the outer side of the front wall and having an aperture therein at the aperture in the wall, the furnace front having a ballsocket in its outer side extending about the aperture therein, an adjusting-head having a ball-face seated adjustably in the ballsocket and provided also with two adjust ing-screws extending to the furnace-front above and below the ball-socket, a tubular holder having one end inserted in and secured to the adjusting-head. the holder extending adj-ustably through the aperture in the front wall and having a contracted inner end, a steam-pipe extending;through the holder and filling said contracted end, elastic packing in said holder extending about said steam-pipe, a hollow header connected to the inner end of said steam pipe, a supply-pipe connected with the steanrboiler and also to said steam-pipe, a regulating valve connected with said supply-pipe, and a pressuregage connected with said supplypipe between said valve and saidsteam-pipe.

at. In -a smoke consumer, the combination with a furnace having a furnace wall provided with an aperture and also a bridge wall, grates supported in the furnace, and a furnace, of a metallic front secured to the outer side of the furnace wall and ha-v lng an aperture therein at the aperture in the wall, the metallic front having a ball-socket in its outer side extending about the aperture therein, an adjusting head having a ball-face seated adjustably in the ball-socket and provided with securing means, a tubular holder having one end fixedly supported by the adjusting head, the holder extendin through the aperture in the urnace wall pipe, a

adj ustably and having a contracted inner end, a steam pipe extending through the holder in contact with said contracted end, elastic packing in saidholder extending about said steam-pipe, a hollow header connected to the inner end of said steam pipe, jet pipes connected to the header, a supply pipe connectied with the steam boiler and also to said In testimon whereof, I affix my signature in presence 0 two witnesses.

ALMOND E. WILSON. Witnesses A. O. ABEL, O. WALTHER.

7 Copies of this patent may be obtained for five cents each, by addressing the "flomgnislloner of Eaten",

Washington, 1). C. 

